2006/444/EG: Beschluss des Rates vom 13. März 2006 über den Beitritt der Gemeinschaft zu Regelung Nr. 55 der Wirtschaftskommission der Vereinten Nationen für Europa über einheitliche Bedingungen für die Genehmigung mechanischer Verbindungsteile von Fahrzeugkombinationen (Text von Bedeutung für den EWR)

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ion there shall be marking to indicate the capacity in terms of characteristic values as defined in paragraph 2.11 of this Regulation. 1.1. The height of all letters and numbers shall be not less than those of the approval number, that is a/3 where a is 8 mm. 1.2. The characteristic values applicable to each device or component which are to be marked are as shown in the table below — see also paragraph 7.3 of this Regulation: TABLE 1 Relevant characteristics values to be marked on coupling devices or components Description of mechanical coupling device or component Relevant characteristic values to be marked Class D Dc S U V Coupling balls and towing brackets — see annex 5, para. 1 of this Regulation ★ ★ ★ Coupling heads ★ ★ ★ Drawbar couplings ★ ★ ★ ★ ★ Drawbar eyes ★ ★ ★ ★ ★ Drawbars ★ ★ ★ ★ ★ Drawbeams ★ ★ ★ ★ ★ Fifth wheel couplings ★ ★ ★ Fifth wheel pins ★ ★ Fifth wheel mounting plates ★ ★ ★ Hook type couplings ★ ★ ★ ★ ★ Examples: C50—X D130 Dc90 S1000 V35 would identify a non‐standard drawbar coupling of Class C50—X with a maximum D value of 130 kN, a maximum permitted Dc value of 90 kN, a maximum permitted static vertical imposed mass of 1 000 kg and a maximum permitted V value of 35 kN. A50—X D20 S120 would identify a standard towing bracket with ball coupling of Class A50—X with a maximum D value of 20 kN and a maximum permitted static vertical imposed mass of 120 kg. ANNEX 5 REQUIREMENTS FOR MECHANICAL COUPLING DEVICES OR COMPONENTS 1. COUPLING BALLS AND TOWING BRACKETS The requirements stated in paragraphs 1.1 to 1.5 of this annex are applicable to all coupling balls and towing brackets of Class A. Paragraph 1.6 details additional requirements which must be fulfilled by standard 50 mm diameter coupling balls with flange type bolted fixings. 1.1. Coupling balls of Class A shall conform to Figure 2 in external shape and external dimensions. Figure 2 Coupling ball of Class A Text von Bild ø17±2 N9 1/ 32 min 15 min Spherical ø50h13 R 3min 1/ ø29+0 -2 (1) The connecting radius between the ball and the neck should be tangential both to the neck and to the lower horizontal surface of the coupling ball. (2) See ISO/R 468 and ISO 1302, the roughness number N9 refers to a Ra value of 6,3 μm. 1.2. The shape and dimensions of towing brackets shall meet the requirements of the vehicle manufacturer concerning the attachment points and additional mounting devices or components if necessary. 1.3. Removable coupling balls: 1.3.1. In the case of removable coupling balls or components which are not fixed by bolts, for example Class A50-X, the point of connection and the locking arrangement shall be designed for positive mechanical engagement. 1.3.2. In the case of a removable coupling ball or component which may be separately approved for use with a variety of towing brackets for different vehicle applications, for example Class A50-X, the clearance space when such a coupling ball is fitted to the towing bracket shall be that prescribed in annex 7, Figure 25. 1.4. Coupling balls and towing devices shall be able to satisfy the tests given in annex 6, paragraph 3.1. 1.5. Manufacturers of towing brackets shall incorporate attachment points to which either secondary couplings or devices necessary to enable the trailer to be stopped automatically in the event of separation of the main coupling, may be attached. This requirement is necessary to enable the vehicle to comply with the requirements of paragraph 5.2.2.9 of UNECE Regulation No 13 — Uniform Provisions concerning the approval of vehicles of categories M, N and O with regard to braking. 1.5.1. The attachment points for a secondary coupling and/or breakaway cable shall be positioned such that when in use, the secondary coupling or breakaway cable does not restrict the normal articulation of the coupling or interfere with the normal inertia braking system operation. A single attachment point shall be positioned within 100 mm of a vertical plane passing through the centre of articulation of the coupling. If this is not practicable, two attachment points shall be provided, one on each side of the vertical centre line and equidistant from the centre line by a maximum of 250 mm. The attachment point(s) shall be as rearward and as high as practicable. 1.6. Special requirements for standard coupling balls and flange type towing brackets of Classes A50-1 to A50-5 inclusive: 1.6.1. Dimensions of Class A50-1 coupling balls and flange type towing brackets shall be as given in Figure 3 and Table 2. 1.6.2. Dimensions of Class A50-2, A50-3, A50-4 and A50-5 coupling balls and flange type towing brackets shall be as given in Figure 4 and Table 2. 1.6.3. Coupling balls and flange type towing brackets of the classes A50-1 to A50-5 inclusive, shall be suitable and tested for the characteristic values given in Table 3. Figure 3 Dimensions of standard flange type ball couplings of Class A50-1 (see Table 2) Text von Bild h ød2 g = = c l = = e1 = = f Figure 4 Dimensions of standard flange type ball couplings of Class A50-2 to A50-5 (see Table 2) Text von Bild h c l f ød2 L g = e2 = = = e1 Table 2 Dimensions of standard flange type ball couplings (mm), see Figures 3 and 4. Class A50-1 A50-2, A50-4 A50-3, A50-5 Comments e1 90 83 120 ±0,5 e2 56 55 ±0,5 d2 17 10,5 15 H13 f 130 110 155 +6,0 -0 g 50 85 90 +6,0 -0 c 15 15 15 Maximum l 55 110 120 ±5,0 h 70 80 80 ±5,0 Table 3 Characteristic values for standard flange type ball couplings Class A50-1 A50-2 A50-3 A50-3 A50-5 D 17 20 30 20 30 S 120 120 120 150 150 D = Maximum D value (kN) S = Maximum static mass (kg) 1.7. Manufacturers of coupling balls and towing brackets intended for fitment in the after-market and which do not have any association with the relevant vehicle manufacturer shall be aware of the requirements for articulation of the coupling given in paragraph 2 of this annex and shall comply with the appropriate requirements in annex 7 to this Regulation. 2. COUPLING HEADS 2.1. Coupling heads of Class B50 shall be designed so that they can be used safely with the coupling balls described in paragraph 1 of this annex and thereby retain the prescribed characteristics. Coupling heads shall be designed in such a way that safe coupling is ensured, also taking into account the wear of the coupling devices. 2.2. Coupling heads shall be able to satisfy the tests laid down in annex 6, paragraph 3.2. 2.3. Any additional device (e.g. braking, stabiliser, etc.) shall not have any adverse effect on the mechanical connection. 2.4. When not attached to the vehicle, horizontal rotation of the coupling head shall be at least 90o to each side of the centre line of the coupling ball and mounting described in paragraph 1 of this annex. Simultaneously, there shall be an angle of free vertical movement 20o above and below the horizontal. Also, in conjunction with the horizontal angle of rotation of 90o it shall be possible for there to be 25o of roll in both directions about the horizontal axis. The following articulation shall be possible at all angles of horizontal rotation: (i) vertical pitch ±15o with axial roll ±25o (ii) axial roll ±10o with vertical pitch ±20o 3. DRAWBAR COUPLINGS The requirements of paragraphs 3.1 to 3.6 of this annex are applicable to all drawbar couplings of Class C50. Additional requirements which must be fulfilled by standard drawbar couplings of Classes C50-1 to C50-6 are given in paragraph 3.7. 3.1. Performance requirements — All drawbar couplings shall be able to satisfy the tests stated in annex 6, paragraph 3.3. 3.2. Suitable drawbar eyes — Class C50 drawbar couplings shall be compatible with all Class D50 drawbar eyes and couplings with the specified characteristics. 3.3. Jaw Class C50 drawbar couplings shall have a jaw which is designed such that the appropriate drawbar eye is guided into the coupling. If the jaw, or a part supporting the jaw, can pivot about the vertical axis, it shall establish itself automatically in the normal position and with the coupling pin open, be effectively restrained in this position to give satisfactory guidance for the drawbar eye during the coupling procedure. If the jaw, or a part supporting the jaw, can pivot about the horizontal transverse axis, the joint providing the rotation capability shall be restrained in its normal position by a locking torque. The torque shall be sufficient to prevent a force of 200 N acting vertically upwards on the top of the jaw producing any deflection of the joint from its normal position. The locking torque shall be greater than that created by operation of the hand lever described in paragraph 3.6 of this annex. It shall be possible to bring the jaw to its normal position manually. A jaw that pivots about the horizontal transverse axis is only approved for bearing mass, S, of up to 50 kg and a V-value of up to 5 kN. If the jaw, or a part supporting the jaw, is pivoted about the longitudinal axis, the rotation shall be restrained by a locking torque of at least 100 Nm. The minimum required size of the jaw depends on the D value of the coupling: D value ≤ 18 kN — width 150 mm, height 100 mm D value > 18 kN ≤ 25 kN — width 280 mm, height 170 mm D value > 25 kN — width 360 mm, height 200 mm The external corners of the jaw may be radiused. Smaller jaws are permitted for Class C50-X drawbar couplings if their use is restricted to centre axle trailers up to 3,5 tonnes maximum permissible mass or if the use of a jaw from the above table is impossible due to technical reasons and if, furthermore, there are special circumstances such as visual aids for ensuring safe execution of the automatic coupling procedure and if the field of application is restricted in the approval according to information given by the coupling manufacturer in the communication form shown in annex 1. 3.4. Minimum articulation of the coupled drawbar eye The drawbar eye, when coupled to a drawbar coupling but not fitted to a vehicle, shall have the degrees of articulation given below. If part of the articulation is provided by a special joint (Class C50-X drawbar couplings only), the field of application, given in the communication form shown in annex 1, shall be restricted to the cases stated in annex 7, paragraph 1.3.8. 3.4.1. ±90o horizontally about the vertical axis from the longitudinal axis of the vehicle — see Figure 5. Figure 5 Horizontal rotation of the coupled drawbar eye Text von Bild 90° min 90° min Longitudinal axis of towing vehicle 3.4.2. ±20o vertically about the transverse axis from the horizontal plane of the vehicle — see Figure 6. Figure 6 Vertical rotation of the coupled drawbar eye Text von Bild 20° min 20° min joint 20° min 20° min Horizontal plane 3.4.3. ±25o axial rotation about the longitudinal axis from the horizontal plane of the vehicle — see Figure 7. Figure 7 Axial rotation of the coupled drawbar eye Text von Bild 25° min 25° min 25° min 25° min Horizontal plane 3.5. Locking to prevent inadvertent uncoupling: In the closed position the coupling pin shall be locked by two positive mechanical engagement locking devices each of which shall remain effective should the other fail. The closed and locked position of the coupling shall be clearly indicated externally by a mechanical device. It shall be possible to verify the position of the indicator by feel, for example, in the dark. The mechanical indication device shall indicate the engagement of both locking devices (an AND condition). However, it is sufficient for the engagement of only one locking device to be indicated if, in this situation, engagement of the second locking device is an inherent feature of the design. 3.6. Hand levers Hand levers shall be of a design suitable for easy use with the end rounded off. The coupling shall not have any sharp edges or points of possible pinching near the hand lever which could result in injury during operation of the coupling. The force needed to release the coupling, measured without the drawbar eye, shall not exceed 250 N perpendicular to the hand lever along the line of operation. 3.7. Special requirements for standard drawbar couplings of Class C50-1 to C50-6: 3.7.1. The swivel motion of the drawbar eye about the transverse axis must be achieved through the spherical shape of the coupling pin (and not by means of a joint); 3.7.2. Tensile and compressive shock loads along the longitudinal axis due to the clearance between the coupling pin and the drawbar eye shall be attenuated by spring and/or damping devices (except C50-1). 3.7.3. The dimensions shall be as given in Figure 8 and Table 4. 3.7.4. The couplings shall be suitable and tested for the characteristic values given in Table 5. 3.7.5. The coupling shall be opened by means of a hand lever at the coupling (no remote control). Figure 8 Dimensions of standard drawbar couplings (mm), (see Table 4) Text von Bild l3 250 max 40 min a 45max 0,5a+45 -0 140 max T ø48,6 min A b h A c l1 l2 ød1 A - A ød2 e2 e1 f g Table 4 Dimensions of standard drawbar couplings (mm), see Figure 8 Class C50-1 C50-2 C50-3 C50-4 C50-5 C50-6, C50-7 Remarks e1 83 83 120 140 160 160 ±0,5 e2 56 56 55 80 100 100 ±0,5 d1 54 74 84 94 94 max. d2 10,5 10,5 15 17 21 21 H13 f 110 110 155 180 140 140 ±3,0 g 85 85 90 120 140 140 ±3,0 a 100 170 200 200 200 200 ±20,0 - 0 b 150 280 360 360 360 360 ±20,0 - 0 c 20 20 24 30 30 30 max. h 150 190 265 265 265 265 max. l1 150 250 300 300 300 max. l2 150 300 330 330 330 330 max. l3 100 160 180 180 180 180 ±20,0 T 15 20 35 35 35 max. Table 5 Characteristic values for standard drawbar couplings Class C50-1 C50-2 C50-3 C50-4 C50-5 C50-6 C50-7 D 18 25 70 100 130 190 190 Dc 18 25 50 70 90 120 130 S 200 250 650 900 1000 1000 1000 V 12 10 18 25 35 50 75 D = maximum D value (kN) Dc = maximum D value (kN) for centre axle trailer applications S = maximum static vertical load on coupling (kg) V = maximum V value (kN) 4. DRAWBAR EYES 4.1. General requirements for drawbar eyes of Class D50: All drawbar eyes of Class D50 shall be able to satisfy the test stated in annex 6, paragraph 3.4. Class D50 drawbar eyes are intended for use with C50 drawbar couplings. Drawbar eyes shall not be able to rotate axially (because the respective couplings can rotate). If Class D50 drawbar eyes are fitted with sleeves, they shall comply with the dimensions shown in Figure 9 (not permitted for Class D50-C) or Figure 10. The sleeves must not be welded into the drawbar eyes. Class D50 drawbar eyes shall have the dimensions given in paragraph 4.2. The form of shank for drawbar eyes of Class D50-X is not specified but for a distance of 210 mm from the centre of the eye the height “h” and the width “b” shall be within the limits given in Table 6. Figure 9 Slotted sleeve for Class D50 drawbar eyes Text von Bild 300 300 2,5 2,5 ø50H12 45±0,5 5 2 max Figure 10 Non-slotted sleeve for Class D50-C drawbar eyes Text von Bild 40±0,5 40o 40o ø60u8 ø50H12 5±0,5 5±0,5 Table 6 Dimensions for drawbar eyes D50-A and D50-X, see Figure 11 Class h (mm) b (mm) D50-A 65 +2/-1 60 +2/-1 D50-X 80 max. 62 max. Table 7 Characteristic values for standard drawbar eyes Class D Dc S V D50-A 130 90 1 000 30 D50-B 130 90 1 000 25 D50-C 190 120 1 000 50 D50-D 190 130 1 000 75 4.2. Special requirements for Class D50 drawbar eyes: 4.2.1. Class D50-A and D50-X drawbar eyes shall have the dimensions illustrated in Figure 11. Figure 11 Dimensions of Classes D50-A and D50-X drawbar eyes, (see Table 6) Text von Bild 45 20o 40 h 80+5 -0 210+5 -10 A-A shown without sleeve Sphere ø115+0 -1 A 45o 1,5 1,5 ø60H11 45o 45o b R15 20o A 32,5±1,5 4.2.2. Class D50-B drawbar eyes shall have the dimensions illustrated in Figure 12. Figure 12 Dimensions of Class D50-B drawbar eyes, (see other dimensions in Figure 11) Text von Bild ø67+2 -1 X ø60d10 M45x3 210+5 -10 230+5 -0 157 12 245 60+2 -1 ø80+5 -0 222 DRAWBAR EYE Y ø60H8 173 185 ø70.6+0.2 -0 1:10 1+1 -0x45° R5 max X 70.6 ±0.1 across flats 157 DRAWBAR SOCKET 1:10 12 6x45 R1.0 max Y 70.6+0.2 -0 across flats 173 4.2.3. Classes D50-C and D50-D drawbar eyes shall have the dimensions illustrated in Figure 13. Figure 13 Dimensions of Classes D50-C and D50-D drawbar eyes, (see other dimensions in Figure 11) Text von Bild ø34 32 ø17 R6 min A 67+2 -11/ 154 110 ±0,5 A 210+5 -10 250+5 -0 26+0 -0,5 100 ±0,5 110 ±0,5 154 Section AA R10 max 60+2 -1 0.2 1 For Class D50-D drawbar eyes this dimension shall be "80 max." 4.2.4. Classes D50-C and D50-D drawbar eyes shall be fitted with non slotted sleeves shown in Figure 10. 4.3. Load values for standard drawbar eyes. Standard drawbar eyes and the means of attachment shall be suitable for, and tested for, the load values stated in Table 7. 4.4. General requirements for Class L toroidal drawbar eyes: 4.4.1. Class L toroidal drawbar eyes are intended for use with Class K hook type couplings 4.4.2. When used with a Class K hook type coupling they shall meet the requirements for articulation given in paragraph 10.2 of this annex. 4.4.3. Class L toroidal drawbar eyes shall have the dimensions given in Figure 14 and Table 8 Figure 14 Dimensions of Class L toroidal drawbar eyes (see Table 8) Text von Bild 72 max a dla b dia c 50 max 4.4.4. Class L toroidal drawbar eyes shall satisfy the tests given in annex 6, paragraph 3.4 and shall be suitable for the characteristic values given in Table 9. Table 8 Dimensions of Class L toroidal drawbar eyes — see Figure 14 (Dimensions in mm) Class L1 L2 L3 L4 L5 remarks a 68 +1,6 /-0,0 76,2 ±0,8 76,2 ±0,8 76,2 ±0,8 1 000 b 41,2 ±0,8 41,2 ±0,8 41,2 ±0,8 41,2 ±0,8 41,2 ±0,8 c 70 65 65 65 70 min. Table 9 Characteristic values for Class L toroidal drawbar eyes Class L1 L2 L3 L4 L5 D kN 30 70 100 130 180 Dc kN 27 54 70 90 120 S kg 200 700 950 1 000 1 000 V kN 12 18 25 35 50 5. DRAWBARS 5.1. Drawbars of class E shall satisfy the tests prescribed in annex 6, paragraph 3.3. 5.2. In order to provide a connection to the towing vehicle, the drawbars can be fitted either with coupling heads as in paragraph 2 or drawbar eyes as in paragraph 4 of this annex. The coupling heads and drawbar eyes can be attached by screwing, bolting or welding. 5.3. Height adjusting devices for hinged drawbars. 5.3.1. Hinged drawbars shall be fitted with devices for adjusting the drawbar to the height of the coupling device or jaw. These devices shall be designed so that the drawbar can be adjusted by one person without tools or any other aids. 5.3.2. Height adjusting devices shall be able to adjust the drawbar eyes or ball couplings from the horizontal above the ground at least 300 mm upwards and downwards. Within this range the drawbar shall be adjustable steplessly, or in maximum steps of 50 mm measured at the drawbar eye or ball coupling. 5.3.3. Height adjusting devices shall not interfere with the easy movement of the drawbar after coupling. 5.3.4. The height adjusting devices shall not interfere with the action of any inertia, overrun type, brake. 5.4. In the case of drawbars combined with inertia, overrun, brakes, the distance between the centre of the drawbar eye and the end of the free shank of the drawbar eye shall not be less than 200 mm in the brake application position. With the shank of the drawbar eye fully inserted the distance shall not be less than 150 mm. 5.5. Drawbars for use on centre axle trailers shall possess at least half the moment of resistance against lateral forces as against vertical forces. 6. DRAWBEAMS 6.1. Drawbeams of Class F shall satisfy the tests prescribed in annex 6, paragraph 3.3. 6.2. The drilling pattern for mounting of Class C standard drawbar couplings shall be in accordance with Figure 15 and Table 10 below. 6.3. Drawbeams shall not be welded to the chassis, bodywork or other part of the vehicle. Figure 15 Mounting dimensions for standard drawbar couplings (see Table 10) Text von Bild e1 ød2 = = T G = = ød1 = = e2 = = F L1 Table 10 Mounting dimensions for standard drawbar couplings (mm) — see Figure 15 Class C50-1 C50-2 C50-3 C50-4 C50-5 C50-6, C50-7 Remarks e1 83 83 120 140 160 160 ±0,5 e2 56 56 55 80 100 100 ±0,5 d1 55 75 85 95 95 +1,0 /-0,5 d2 10,5 10,5 15 17 21 21 H13 T 15 20 35 35 35 max. F 120 120 165 190 210 210 min. G 195 95 100 130 150 150 min. L1 200 300 400 400 400 min. 7. FIFTH WHEEL COUPLINGS AND STEERING WEDGES The requirements of paragraphs 7.1 to 7.7 are applicable to all fifth wheel couplings of Class G50. Additional requirements which shall be fulfilled by standard coupling devices are gi